JP2010519569A - Projection type display device with dual mode function - Google Patents
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N5/00—Details of television systems
- H04N5/74—Projection arrangements for image reproduction, e.g. using eidophor
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N9/00—Details of colour television systems
- H04N9/12—Picture reproducers
- H04N9/31—Projection devices for colour picture display, e.g. using electronic spatial light modulators [ESLM]
- H04N9/3141—Constructional details thereof
- H04N9/3173—Constructional details thereof wherein the projection device is specially adapted for enhanced portability
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N9/00—Details of colour television systems
- H04N9/12—Picture reproducers
- H04N9/31—Projection devices for colour picture display, e.g. using electronic spatial light modulators [ESLM]
- H04N9/3102—Projection devices for colour picture display, e.g. using electronic spatial light modulators [ESLM] using two-dimensional electronic spatial light modulators
- H04N9/3105—Projection devices for colour picture display, e.g. using electronic spatial light modulators [ESLM] using two-dimensional electronic spatial light modulators for displaying all colours simultaneously, e.g. by using two or more electronic spatial light modulators
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N9/00—Details of colour television systems
- H04N9/12—Picture reproducers
- H04N9/31—Projection devices for colour picture display, e.g. using electronic spatial light modulators [ESLM]
- H04N9/3102—Projection devices for colour picture display, e.g. using electronic spatial light modulators [ESLM] using two-dimensional electronic spatial light modulators
- H04N9/3111—Projection devices for colour picture display, e.g. using electronic spatial light modulators [ESLM] using two-dimensional electronic spatial light modulators for displaying the colours sequentially, e.g. by using sequentially activated light sources
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N9/00—Details of colour television systems
- H04N9/12—Picture reproducers
- H04N9/31—Projection devices for colour picture display, e.g. using electronic spatial light modulators [ESLM]
- H04N9/3141—Constructional details thereof
- H04N9/3147—Multi-projection systems
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N9/00—Details of colour television systems
- H04N9/12—Picture reproducers
- H04N9/31—Projection devices for colour picture display, e.g. using electronic spatial light modulators [ESLM]
- H04N9/3141—Constructional details thereof
- H04N9/315—Modulator illumination systems
- H04N9/3167—Modulator illumination systems for polarizing the light beam
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N5/00—Details of television systems
- H04N5/74—Projection arrangements for image reproduction, e.g. using eidophor
- H04N5/7416—Projection arrangements for image reproduction, e.g. using eidophor involving the use of a spatial light modulator, e.g. a light valve, controlled by a video signal
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Abstract
【課題】単一の光源を利用しながら、同時に異なる２つの映像をディスプレイできるデュアルモードで動作することのできる投射型ディスプレイ装置を提供すること。
【解決手段】本発明は、デュアルモード機能を持つ投射型ディスプレイ装置に関する。前記投射型ディスプレイ装置は、単一の光源部と、前記光源部から提供される光を互いに直交(orthogonal)する２つの偏光である第１の偏光波及び第２の偏光波に分離して提供する偏光ビーム分離器(PBS)と、前記偏光ビーム分離器から提供される第１の偏光波が進行する経路に配置され、第１の映像信号に応じて前記第１の偏光波を変調して第１の映像を提供する第１の光変調素子と、前記第１の光変調素子から提供される第１の映像を拡大投射させる第１の投射レンズ部と、前記偏光ビーム分離器から提供される第２の偏光波が進行する経路に配置され、第２の映像信号に応じて前記第２の偏光波を変調して第２の映像を提供する第２の光変調素子と、前記第２の光変調素子から提供される第２の映像を拡大投射する第２の投射レンズ部と、を具備する。
【選択図】図１PROBLEM TO BE SOLVED: To provide a projection display device capable of operating in a dual mode capable of simultaneously displaying two different images while using a single light source.
The present invention relates to a projection display device having a dual mode function. The projection-type display apparatus separately provides a single light source unit and light provided from the light source unit into a first polarized wave and a second polarized wave, which are two polarizations orthogonal to each other. And a polarization beam separator (PBS) that is disposed on a path along which the first polarization wave provided from the polarization beam separator travels, and modulates the first polarization wave according to a first video signal. Provided from a first light modulation element for providing a first image, a first projection lens unit for enlarging and projecting a first image provided from the first light modulation element, and the polarization beam separator. A second light modulation element that is disposed in a path along which the second polarized wave travels and modulates the second polarized wave according to a second video signal to provide a second image; and A second projection lens unit for enlarging and projecting a second image provided from the light modulation element of To Bei.
[Selection] Figure 1
Description
本発明は、２つの映像を同時にディスプレイできるデュアルモード機能を持つ投射型ディスプレイ装置に関し、より具体的には、単一の光源を利用して同時に異なる２つの映像をディスプレイできるようにすることによって、小型かつ低電力を消費する投射型ディスプレイ装置に関する。 The present invention relates to a projection display device having a dual mode function capable of simultaneously displaying two images, and more specifically, by allowing two different images to be displayed simultaneously using a single light source, The present invention relates to a projection display device that is small and consumes low power.
最近、ディスプレイ装置であって、大画面及び高画質の映像の要求が増大するに従って、小型の映像を投射レンズ(projection lens)を利用して拡大投射する投射型装置の普及が急速に広がっている。投射型ディスプレイ装置は、スクリーンに画像が投射される方向によって、前面投射方式と後面投射方式とに大別される。前記前面投射方式は、一般的な会議用プロジェクターとして多く使われ、今後超小型プロジェクターへの発展が予想される。前記後面投射方式のディスプレイ装置は、図１のような投射・テレビが代表的である。このような投射・テレビは、薄厚かつ低価格で大画面を具現できる平板ディスプレイが注目されている。 Recently, as the demand for large-screen and high-quality images increases, the spread of projection-type devices that use a projection lens to project a small image is rapidly spreading. . Projection type display devices are roughly classified into a front projection system and a rear projection system depending on the direction in which an image is projected on a screen. The front projection system is often used as a general conference projector, and is expected to develop into a micro projector in the future. The rear projection type display device is typically a projection / television as shown in FIG. As such a projection / television, a flat panel display capable of realizing a large screen with a thin thickness and a low price is attracting attention.
前面投射方式及び後面投射方式に利用されている光変調素子としては、液晶表示装置(LCD)、デジタルマイクロミラー素子(Digital Micromirror Device、'DMD')及び反射型LCoS(Liquid Crystal on Silicon)が広く利用されている。前記LCoS及びLCDは、いずれも液晶変調装置であり、LCoSは、反射型であり、LCDは、透過型と反射型とに区分でき、必要によって製作できる。前記液晶変調装置は、外部から与えられる電気的な変異に対して入射される偏光の回転角度を変化させ、特定の方向の偏光板を透過させることによって光の強さが変わるようにすることで、映像をディスプレイさせるようになる。一方、DMDは、デジタル光プロセシング(Digital Light Processing、'DLP')システムで使われる一種の素子であって、微細なミラーを＋１０及び−１０度に変化させ、光の反射角度を２つのモードに変換させる作用をする光スイッチディスプレイ素子である。 Liquid crystal display devices (LCD), digital micromirror devices ('DMD'), and reflective LCoS (Liquid Crystal on Silicon) are widely used as light modulation elements used for front projection and rear projection. It's being used. The LCoS and the LCD are both liquid crystal modulators, the LCoS is a reflection type, and the LCD can be classified into a transmission type and a reflection type, and can be manufactured as necessary. The liquid crystal modulation device changes the rotation angle of polarized light incident on an electrical variation given from the outside, and transmits the polarizing plate in a specific direction so that the intensity of light changes. , The video will be displayed. DMD, on the other hand, is a kind of element used in Digital Light Processing ('DLP') system, which changes the fine mirror to +10 and -10 degrees and changes the light reflection angle into two modes. It is an optical switch display element that acts to convert.
図１は、一般的なRP-TV(Rear Projection TV）の内部構成を概略的に示した構成図である。図１を参照すれば、投射・テレビは、光源から出る光を、DMD、LCoS、LCD等光変調素子に提供し、光変調素子の映像を投射レンズ系及びミラーを利用して拡大させ、スクリーンに結像させるようになる。このように、小型かつ高画質の光変調素子を利用して映像をスクリーンに拡大投射するようになるので、大画面の映像を容易に具現できる。また、このような投射システムは、CRTに比べて高解像度と高輝度を確保することができるので、大画面ディスプレイとして期待されている。上述したように、大画面を具現させるために、様々な投射型ディスプレイ装置が提供されてきている。 FIG. 1 is a configuration diagram schematically showing an internal configuration of a general RP-TV (Rear Projection TV). Referring to FIG. 1, a projection / television provides light emitted from a light source to a light modulation element such as DMD, LCoS, LCD, etc., and enlarges the image of the light modulation element using a projection lens system and a mirror. To form an image. As described above, since the image is enlarged and projected on the screen by using the light modulation element having a small size and high image quality, a large screen image can be easily realized. In addition, such a projection system is expected to be a large screen display because it can ensure higher resolution and higher brightness than CRT. As described above, various projection display devices have been provided to realize a large screen.
一方、近来、ディスプレイ装置についての技術が発展し、その使用用途も多変化していくことから、異なる２つの映像を同時にディスプレイできるディスプレイ装置に対する要求が増大している。とこれが、従来の投射型ディスプレイ装置は、単一の映像のみを提供する単純な使用形態のみが提案されているだけである。 On the other hand, recently, the technology for display devices has been developed, and the usages of the display devices have been changed. Therefore, the demand for display devices capable of simultaneously displaying two different images has increased. However, the conventional projection display device has only been proposed for a simple usage pattern that provides only a single image.
また、近来になって、多様な形態のマルチメディアコンテンツが提供されてきており、大部分のマルチメディア再生機器や通信機器が無線に駆動されたり、携帯用や移動用に使われるに従って、小型ながらも消費電力の小さいデュアルモード機能を持つ投射型ディスプレイ装置に対する要求が増大している。 Recently, various forms of multimedia contents have been provided, and as most multimedia playback devices and communication devices are driven wirelessly or used for portable or mobile, they are small in size. However, there is an increasing demand for a projection display device having a dual mode function with low power consumption.
上述した問題点を解決するための本発明の目的は、単一の光源を利用しながら、同時に異なる２つの映像をディスプレイできるデュアルモードで動作することのできる投射型ディスプレイ装置を提供することにある。 SUMMARY OF THE INVENTION An object of the present invention to solve the above-mentioned problems is to provide a projection display device that can operate in a dual mode that can display two different images simultaneously while using a single light source. .
本発明の他の目的は、小型かつ低電力で駆動できるデュアルモード機能を持つ投射型ディスプレイ装置を提供することにある。 Another object of the present invention is to provide a projection display device having a dual mode function that can be driven with a small size and low power.
上述した技術的課題を達成するための本発明の特徴は、単一の光源部を利用して異なる２つの映像を同時にディスプレイできる投射型ディスプレイ装置に関するものであって、
全動作を制御する駆動部と、
単一の光源部と、
前記光源部から提供される光を第１の偏光波及び第２の偏光波に分離して提供する偏光ビーム分離器と、
前記偏光ビーム分離器から提供される第１の偏光波が進行する経路に配置され、前記駆動部から提供される第１の映像信号に応じて前記第１の偏光波を変調して第１の映像を提供する第１の光変調素子と、
前記第１の光変調素子から提供される第１の映像を拡大投射させる第１の投射レンズ部と、
前記偏光ビーム分離器から提供される第２の偏光波が進行する経路に配置され、前記駆動部から提供される第２の映像信号に応じて前記第２の偏光波を変調して第２の映像を提供する第２の光変調素子と、
前記第２の光変調素子から提供される第２の映像を拡大投射する第２の投射レンズ部と、を具備する。
A feature of the present invention for achieving the technical problem described above relates to a projection display device capable of simultaneously displaying two different images using a single light source unit,
A drive that controls all operations;
A single light source,
A polarization beam separator that separates and provides light provided from the light source unit into a first polarized wave and a second polarized wave;
The first polarized wave provided from the polarization beam separator is disposed in a path along which the first polarized wave travels, and the first polarized wave is modulated in accordance with the first video signal provided from the driving unit, and the first polarized wave is modulated. A first light modulation element for providing an image;
A first projection lens unit for enlarging and projecting a first image provided from the first light modulation element;
The second polarized wave provided from the polarization beam separator is disposed in a path along which the second polarized wave travels, and the second polarized wave is modulated in accordance with a second video signal provided from the driving unit, and the second polarized wave is modulated. A second light modulation element for providing an image;
And a second projection lens unit for enlarging and projecting a second image provided from the second light modulation element.
上述した特徴を持つ前記投射型ディスプレイ装置の前記光源部のランプ部は、赤色(R)、青色(B)、緑色(G)のLEDからなるLEDアレイからなることが望ましい。 The lamp unit of the light source unit of the projection display apparatus having the above-described characteristics is preferably formed of an LED array including red (R), blue (B), and green (G) LEDs.
上述した特徴を持つ前記投射型ディスプレイ装置の前記第１及び第２の光変調素子は、透過型光変調素子及び反射型光変調素子から選択されて構成されることが望ましい。 It is preferable that the first and second light modulation elements of the projection display device having the above-described characteristics are selected from a transmission light modulation element and a reflection light modulation element.
本発明によって、異なる２つの映像を同時にディスプレイできる投射型ディスプレイ装置を提供できるようになる。特に、本発明に係る投射型ディスプレイ装置は、単一の光源部を利用して、異なる２つの映像を同時にディスプレイできるようにすることによって、全体的な大きさを小型化できるだけでなく、低電力で駆動できるようになる。 According to the present invention, it is possible to provide a projection display device capable of simultaneously displaying two different images. In particular, the projection display apparatus according to the present invention can not only reduce the overall size by using a single light source unit but also simultaneously display two different images, and can also reduce power consumption. It becomes possible to drive with.
また、本発明に係る投射型ディスプレイ装置は、根本的に光源の偏光損失を避けることができ、小型ながらも消費電力が減少され、その結果、携帯用や移動用に使われることができる。 In addition, the projection type display device according to the present invention can fundamentally avoid the polarization loss of the light source and reduce power consumption while being small in size. As a result, it can be used for portable or mobile use.
以下、添付の図面を参照して、本発明の望ましい実施形態に係るデュアルモード機能を持つ投射型ディスプレイ装置の構造及び動作について具体的に説明する。 Hereinafter, the structure and operation of a projection display apparatus having a dual mode function according to a preferred embodiment of the present invention will be described in detail with reference to the accompanying drawings.
図２は、本発明の望ましい実施形態に係るデュアルモード機能を持つ投射型ディスプレイ装置の内部構成を概略的に示した構成図である。図２を参照すれば、前記投射型ディスプレイ装置３０は、単一の光源部３００と、偏光ビーム分離器(Polarization Beam Splitter、'PBS')３１０と、第１の光変調素子３２０と、第１の投射レンズ部３３０と、第２の光変調素子３４０と、第２の投射レンズ部３５０と、駆動部(図示せず)と、を具備する。 FIG. 2 is a block diagram schematically illustrating an internal configuration of a projection display apparatus having a dual mode function according to a preferred embodiment of the present invention. Referring to FIG. 2, the projection display apparatus 30 includes a single light source unit 300, a polarization beam splitter (“PBS”) 310, a first light modulator 320, a first light modulator 320, and a first light modulator 320. Projection lens unit 330, second light modulation element 340, second projection lens unit 350, and drive unit (not shown).
前記駆動部は、投射型ディスプレイ装置３０の全動作を制御するものであり、前記光源部３００、第１の光変調素子３２０、及び第２の光変調素子３４０の動作を制御する。特に、前記駆動部は、異なる２つの映像をディスプレイさせるために、第１の映像に該当する映像信号、及び、第２の映像に該当する第２の映像信号を第１の光変調素子３２０及び第２の光変調素子３４０に各々提供する。 The drive unit controls all operations of the projection display device 30 and controls operations of the light source unit 300, the first light modulation element 320, and the second light modulation element 340. In particular, the driving unit displays a video signal corresponding to the first video and a second video signal corresponding to the second video in order to display two different videos. Each of the second light modulation elements 340 is provided.
単一の光源部３００は、ランプ部、フライアイレンズなどのような光均一化光学系等から構成される。前記ランプ部は、レーザー又はLEDから構成されることが望ましい。例えば、前記ランプ部は、赤色(R)、緑色(G)、青色(B)のLEDモジュールが互いに分離されている青色、緑色、赤色のLEDアレイ(array)からなる３板式から構成され、各LEDアレイが１８０Hzによって順次駆動されR、G、B色相の光を順次提供するようになる。一方、本発明の光源部３００のランプ部の他の実施形態は、赤色のLEDと青色のLEDとが一つのモジュール内に順次配置され一つのLEDアレイからなり、緑色のLEDが順次配置され一つのLEDアレイからなる２板式から構成されたり、赤色、緑色、青色のLEDが順次配置され一つのLEDアレイからなる１板式から構成されることもできる。図３は、赤色、緑色、青色のLEDが順次配置され一つのLEDアレイからなる１板式の光源部４００を使用する場合を例示的に示した構成図である。また、本発明の光源部１１０のランプ部は、LEDアレイだけでなく、OLED、LDなどから構成されることもでき、点光源又は面光源も使われることができる。 The single light source unit 300 includes a light uniformizing optical system such as a lamp unit and a fly-eye lens. The lamp unit is preferably composed of a laser or an LED. For example, the lamp unit is formed of a three-plate type including a blue, green, and red LED array in which red (R), green (G), and blue (B) LED modules are separated from each other. The LED array is sequentially driven by 180 Hz to sequentially provide light of R, G, and B hues. On the other hand, in another embodiment of the lamp unit of the light source unit 300 of the present invention, a red LED and a blue LED are sequentially arranged in one module to form one LED array, and a green LED is sequentially arranged. It can be composed of a two-plate type consisting of two LED arrays, or a single-plate type consisting of one LED array in which red, green, and blue LEDs are sequentially arranged. FIG. 3 is a configuration diagram exemplarily showing a case where a one-plate type light source unit 400 including one LED array in which red, green, and blue LEDs are sequentially arranged. In addition, the lamp unit of the light source unit 110 according to the present invention may be formed of not only an LED array but also an OLED, an LD, or the like, and a point light source or a surface light source may be used.
前記光源部は、当業者に自明な技術であるので、本明細書では、これらについての具体的な説明を省略する。 Since the light source unit is a technique obvious to those skilled in the art, a detailed description thereof will be omitted in the present specification.
偏光ビーム分離器(PBS)３１０は、前記光源部から提供される光を直交(orthogonal)する２つの偏光波である第１の偏光波(例えば、P波)及び第２の偏光波(例えば、S波)に分離して、第１の偏光波及び第２の偏光波を互いに異なる光経路に沿って提供する。 The polarization beam separator (PBS) 310 includes a first polarized wave (for example, a P wave) and a second polarized wave (for example, a P wave) that are orthogonal to the light provided from the light source unit. S-wave), and the first polarized wave and the second polarized wave are provided along different optical paths.
参考に、光は、波動として解釈され、波動は、一般的に２つの直交する波動成分であるP波とS波とが合わせられてなり、‘P波’は、波動の進行方向と媒質の振動方向とが一致する縦波を称するものであり、‘S波’は、波動の進行方向と媒質の振動方向とが直角である横波を称するものである。本願発明が属する当該技術分野の通常の知識を有する者にとっては、‘P波’、‘S波’の用語及びその意味は自明なものであり、本明細書では、これに関するより詳細な説明は、省略する。 For reference, light is interpreted as a wave, and the wave is generally composed of two orthogonal wave components, the P wave and S wave, and the 'P wave' is the direction of the wave and the medium The term “S wave” refers to a transverse wave in which the traveling direction of the wave and the vibration direction of the medium are perpendicular to each other. For those skilled in the art to which the present invention belongs, the terms 'P wave' and 'S wave' and their meanings are self-explanatory. Omitted.
前記光源部から提供される光のP波は、前記偏光ビーム分離器３１０を通って、光経路が進行方向の垂直方向に追って変更されて進行するようになり、前記光源部から提供される光のS波は、前記偏光ビーム分離器３１０を通って、光経路が進行方向と同じ方向に追って続いて進行するようになる。 The P wave of the light provided from the light source unit passes through the polarization beam separator 310 and travels with the light path being changed in the vertical direction of the traveling direction, and the light provided from the light source unit. The S wave passes through the polarization beam separator 310 and travels in the same direction as the traveling direction.
第１の光変調素子３２０は、前記偏光ビーム分離器から提供される第１の偏光波であるP波が進行する経路に配置され、前記駆動部から提供される第１の映像信号に応じて前記第１の偏光波を変調して第１の映像を提供する。前記第１の光変調素子は、透過型光変調素子を使用することができ、前記透過型光変調素子としては、透過型HTPS-LCDマイクロディスプレイ素子などがある。 The first light modulation element 320 is disposed in a path along which a P wave that is a first polarization wave provided from the polarization beam separator travels, and corresponds to a first video signal provided from the driving unit. The first polarized wave is modulated to provide a first image. As the first light modulation element, a transmission type light modulation element can be used. Examples of the transmission type light modulation element include a transmission type HTPS-LCD micro display element.
第１の投射レンズ部３３０は、前記第１の光変調素子の正面に配置され、前記第１の光変調素子から提供される第１の映像を拡大投射させるようになる。 The first projection lens unit 330 is disposed in front of the first light modulation element, and enlarges and projects the first video provided from the first light modulation element.
第２の光変調素子３４０は、前記偏光ビーム分離器から提供される第２の偏光波であるS波が進行する経路に配置され、前記駆動部から提供される第２の映像信号に応じて前記第２の偏光波を変調して第２の映像を提供するようになる。前記第２の光変調素子３４０は、反射型光変調素子を使用することが望ましく、反射型光変調素子としては、LCoS、反射型LCD、DMD素子などが選択的に使われることができる。 The second light modulation element 340 is disposed in a path along which an S wave, which is a second polarized wave provided from the polarization beam separator, travels, and corresponds to a second video signal provided from the driving unit. The second polarized wave is modulated to provide a second image. The second light modulation element 340 is preferably a reflection type light modulation element. As the reflection type light modulation element, an LCoS, a reflection type LCD, a DMD element or the like can be selectively used.
前記第２の光変調素子が反射型LCoS光変調素子である場合、第２の投射レンズ部３５０は、第２の光変調素子から反射された光が、PBSから再反射されて出射される経路上に配置され、前記第２の光変調素子から提供される第２の映像を拡大投射させるようになる。 In the case where the second light modulation element is a reflective LCoS light modulation element, the second projection lens unit 350 allows the light reflected from the second light modulation element to be re-reflected from the PBS and emitted. The second image provided above and provided from the second light modulation element is enlarged and projected.
一方、前記第２の光変調素子が反射型DMD光変調素子である場合、前記第２の光変調素子の配置角度を調整し、光経路上に第２の投射レンズ部を配置することによって、好みの位置に所定の映像を提供できるようになる。 On the other hand, when the second light modulation element is a reflective DMD light modulation element, by adjusting the arrangement angle of the second light modulation element and arranging the second projection lens unit on the optical path, A predetermined image can be provided at a desired position.
図２に示されるように、第１の光変調素子を透過型光変調素子から構成し、第２の光変調素子を反射型光変調素子から構成することで、異なる位置に配置されるスクリーン上(‘a’及び‘b’)に異なる映像を結像させ得るようになる。 As shown in FIG. 2, the first light modulation element is composed of a transmission type light modulation element and the second light modulation element is composed of a reflection type light modulation element. Different images can be formed on ('a' and 'b').
本発明の他の実施形態は、第１の光変調素子及び第２の光変調素子の双方を透過型光変調素子から構成したり、双方を反射型光変調素子から構成することもできる。 In another embodiment of the present invention, both the first light modulation element and the second light modulation element can be formed of a transmission type light modulation element, or both can be formed of a reflection type light modulation element.
上述した構成を持つ本発明に係る投射型ディスプレイ装置は、単一の光源部を利用して、異なる第１の映像及び第２の映像を異なる位置に同時に提供することによって、デュアルモードで動作することができるようになる。 The projection display apparatus according to the present invention having the above-described configuration operates in a dual mode by simultaneously providing different first and second images to different positions using a single light source unit. Will be able to.
以上、本発明に関してその望ましい実施形態を中心として述べたが、これは、但し例示に過ぎず、本発明を限定するものではなく、本発明が属する分野の通常の知識を有する者であれば、本発明の本質的な特性を逸脱しない範囲において、以上に例示していない種々の変形と応用が可能であることが分かるはずである。例えば、本発明の実施形態において、第１及び第２の光変調素子並びに光源部等は、投射型ディスプレイ装置の全体的な性能を向上させるために多様に変形して実施できるものである。そして、このような変形と応用に関連する差異点は、添付の請求範囲で規定する本発明の範囲に含まれるものとして解析されるべきである。 The present invention has been described mainly with respect to preferred embodiments thereof. However, this is merely an example, and is not intended to limit the present invention. Any person having ordinary knowledge in the field to which the present invention belongs can be used. It should be understood that various modifications and applications not described above are possible without departing from the essential characteristics of the present invention. For example, in the embodiment of the present invention, the first and second light modulation elements, the light source unit, and the like can be variously modified and implemented in order to improve the overall performance of the projection display device. And the difference regarding such a deformation | transformation and application should be analyzed as what is included in the scope of the present invention prescribed in the attached claim.
本発明に係る技術は、移動通信端末やPMP、又は、PDAのような携帯用の個人情報端末などに広く使われることができる。 The technology according to the present invention can be widely used for a mobile communication terminal, a PMP, or a portable personal information terminal such as a PDA.
３０ 投射型ディスプレイ装置
３００ 単一の光源部
３１０ 偏光ビーム分離器
３２０ 第１の光変調素子
３３０ 第１の投射レンズ部
３４０ 第２の光変調素子
３５０ 第２の投射レンズ部
DESCRIPTION OF SYMBOLS 30 Projection type display apparatus 300 Single light source part 310 Polarization beam separator 320 1st light modulation element 330 1st projection lens part 340 2nd light modulation element 350 2nd projection lens part
Claims (5)
全動作を制御する駆動部と、
単一の光源部と、
前記光源部から提供される光を第１の偏光波及び第２の偏光波に分離して提供する偏光ビーム分離器と、
前記偏光ビーム分離器から提供される第１の偏光波が進行する経路に配置され、前記駆動部から提供される第１の映像信号に応じて前記第１の偏光波を変調して第１の映像を提供する第１の光変調素子と、
前記第１の光変調素子から提供される第１の映像を拡大投射させる第１の投射レンズ部と、
前記偏光ビーム分離器から提供される第２の偏光波が進行する経路に配置され、前記駆動部から提供される第２の映像信号に応じて前記第２の偏光波を変調して第２の映像を提供する第２の光変調素子と、
前記第２の光変調素子から提供される第２の映像を拡大投射する第２の投射レンズ部と、
を具備し、単一の光源部を利用して第１の映像及び第２の映像を同時に提供することによってデュアルモードで動作することができる投射型ディスプレイ装置。 In the projection display device,
A drive that controls all operations;
A single light source,
A polarization beam separator that separates and provides light provided from the light source unit into a first polarized wave and a second polarized wave;
The first polarized wave provided from the polarization beam separator is disposed in a path along which the first polarized wave travels, and the first polarized wave is modulated in accordance with the first video signal provided from the driving unit, and the first polarized wave is modulated. A first light modulation element for providing an image;
A first projection lens unit for enlarging and projecting a first image provided from the first light modulation element;
The second polarized wave provided from the polarization beam separator is disposed in a path along which the second polarized wave travels, and the second polarized wave is modulated in accordance with a second video signal provided from the driving unit, and the second polarized wave is modulated. A second light modulation element for providing an image;
A second projection lens unit for enlarging and projecting a second image provided from the second light modulation element;
And a projection display apparatus capable of operating in a dual mode by simultaneously providing a first image and a second image using a single light source unit.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
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| KR1020070016978A KR100925720B1 (en) | 2007-02-20 | 2007-02-20 | Projection display device with dual mode function |
| PCT/KR2008/000967 WO2008102970A1 (en) | 2007-02-20 | 2008-02-19 | Projection display having dual mode function |
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|---|---|
| US (1) | US20100118274A1 (en) |
| EP (1) | EP2127366A4 (en) |
| JP (1) | JP2010519569A (en) |
| KR (1) | KR100925720B1 (en) |
| WO (1) | WO2008102970A1 (en) |
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| WO2021210410A1 (en) * | 2020-04-17 | 2021-10-21 | ソニーグループ株式会社 | Projector |
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| US8269902B2 (en) * | 2009-06-03 | 2012-09-18 | Transpacific Image, Llc | Multimedia projection management |
| CN101943845A (en) * | 2009-07-07 | 2011-01-12 | 红蝶科技(深圳)有限公司 | Efficient miniature projection optical engine |
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| KR100925720B1 (en) | 2009-11-10 |
| EP2127366A4 (en) | 2010-07-28 |
| EP2127366A1 (en) | 2009-12-02 |
| KR20080077443A (en) | 2008-08-25 |
| US20100118274A1 (en) | 2010-05-13 |
| WO2008102970A1 (en) | 2008-08-28 |
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